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2013 September 26 Sun -summary

[複製連結]
發表於 2013-9-26 15:22:45 | 顯示全部樓層 |閱讀模式
The solar surface is dominated by the extensive and very active AR11850, which has just crossed the meridian and close to the disc centre, and a huge filament nearly mid way between AR11850 and the E limb.  This huge filament is the same prominence that appeared on the E limb on September 21.
AR11850 is very active and flares pop up at many location in this AR.
AR11847 and AR11849 are near the NW limb and are still active.

In the southern hemisphere, AR11846 remains active with the large sunspot.  AR11845, AR11848 and AR11852 are near to the W limb and are still active.  To the east, AR11851 comes with many minor flares and filaments.

On the solar limb, many prominences appear and are fairly evenly distributed.  Many of them are eruptive.

Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
North is up, and east to the left

PTS
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